This chapter begins with a description and categorization of those electronic displays typically used to view continuous-tone imagery. The operation of these devices is described in terms of how a captured digital image is transformed into a displayed image on the face of a display. An image is acquired either by a digital imaging system (a digital camera of some type) or by scanning an image that was acquired by an analog device (a conventional camera or x-ray machine). This chapter emphasizes those factors that affect the quality of the displayed image (relative to the original), although quality is not explicitly discussed in this chapter. Quality is defined here as the degree to which a displayed image accurately portrays the original scene. This chapter also describes the operation of the hardware controls that affect the appearance of the image. Control adjustment is described in more detail in Chapter 10, and image manipulation using software is described in Chapter 11.
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